Automatic Data ProcessingIRS: 221467904
Automatic Data Processing, or ADP, is a provider of payroll and human capital management, or HCM, solutions servicing the full scope of businesses from micro to global enterprises. ADP was established in 1949 and serves over 920,000 clients primarily in the United States. ADP's employer services segment offers payroll, HCM solutions, HR outsourcing, insurance and retirement services. The smaller but faster-growing PEO segment provides HR outsourcing solutions to small and midsize businesses through a co-employment model.